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Case 42753

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Referral category

Dental implants

Region of interest

26

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Canaray 42753

1. Rarefying osteitis on tooth 26MB: unfilled second canal

The mesiobuccal root of the endodontically treated tooth 26 exhibits periapical rarefying osteitis. The existing endodontic obturation in the mesiobuccal root of tooth 26 is eccentrically positioned, which reflects the presence of an unfilled second canal (MB2). This pattern of bone loss is most consistent with persistent periapical pathology due to an unfilled MB2 canal of tooth 26. The remaining periradicular bone appears normal, which suggests no root fracture is present.

Axial views of tooth 26

These axial cross-sectional images demonstrate an epicenter of rarefying osteitis at the distopalatal aspect of the mesiobuccal root apex of tooth 26. The buccal position of the existing endodontic obturation in the mesiobuccal root of tooth 26 is evident in these images.

Coronal views of tooth 26

These coronal cross-sectional images demonstrate the buccal position of the existing endodontic obturation in the mesiobuccal root of tooth 26. There is no periradicular bone loss around the mesiobuccal root of tooth 26 to suggest the presence of a vertical root fracture. The distobuccal and palatal root apices of tooth 26 exhibit a normal post-treatment appearance.

Sagittal views of tooth 26

These sagittal cross-sectional images demonstrate rarefying osteitis involving the mesiobuccal root of tooth 26. The remaining periradicular bone appears normal, which suggests this area of bone loss is due to the presence of persistent periapical pathology rather than a root fracture.

2. Focal maxillary sinus mucositis

A focal area of mild mucositis is present in the posterior aspect of the left maxillary sinus. This represents an incidental finding with no clinical significance. The remaining mucosa within the left maxillary sinus demonstrates a thickness within the range of normal.